<template>
  <div class="header">
    <div class="header-left">
      <div class="iconfont back-icon">&#xe624;</div>
    </div>
    <div class="header-input">
      <span class="iconfont">&#xe632;</span>
      城市、景点、游玩主题
    </div>
    <router-link to="/city">
      <div class="header-right">
        <!-- {{this.city}} -->
        <!-- {{this.$store.state.city}} -->
        <!-- 高级API改写 -->
        {{this.city}}
        <!-- {{this.doubleCity}} -->
        <span class="iconfont arrow-icon">&#xe64a;</span>
      </div>
    </router-link>
  </div>
</template>

<script>
import { mapState, mapGetters } from 'vuex'
export default {
  name: 'HomeHeader',
  computed: {
    ...mapState(['city']), // 把vuex里的数据，映射到这个组件的computed
    // 计算属性里。将公用数据city映射到，名字叫city的计算属性中
    ...mapGetters(['doubleCity'])
  }
  // props: {
  //   city: String
  // }
}
</script>

<style lang="stylus" scoped>
  // @import '~@/assets/styles/varibles.styl'
  @import '~styles/varibles.styl'
  // header 左部分固定宽度，两边浮动，中间填满剩下宽度
  .header
    display: flex
    height: $headerHeight // 32px
    line-height: $headerHeight
    background: $bgColor
    color: #fff

    .header-left // 左侧
      width: .64rem
      float: left
      .back-icon
        text-align center
        font-size .4rem

    .header-input // 中间
      flex: 1
      height .64rem
      margin-top .12rem
      margin-left .2rem
      background #fff
      border-radius .1rem
      color #ccc
      height .64rem
      line-height .64rem
      padding-left .2rem

    .header-right // 右侧
      min-width: 1.04rem
      padding 0 .1rem
      float: right
      text-align center
      color #fff
      .arrow-icon
        margin-left -.04rem // 消除inline-block 默认间隙2px
        font-size .24rem

</style>
